A firecracker is a rocket because it has a propulsion system.

爆竹是火箭，因为它有一个推进系统。

NASA wants more time to examine problems with Starliner's propulsion system.

NASA希望有更多时间来检查星际客机推进系统问题。

The submarine's nuclear propulsion system is said to be unaffected.

据说这艘潜艇核推进系统没有受到影响。

" Propulsion systems offline, " the car said.

“推进系统断。”车载电脑提示。

" Propulsion systems now online, " the car said.

“推进系统现。”车载电脑发出语音播报。

A rocket is simply a structural body that you can launch, it has a propulsion system.

火箭只是一个可以发构体，它有一个推进系统。

Starliner's propulsion system is part of what NASA describes as the spacecraft's " service module."

“星际客机”推进系统是NASA所称“服务舱”一部分。

Thrust is the force that pushes a spacecraft through the air. It is produced by a propulsion system.

推力是推动航天器穿越空气力。它由推进系统产生。

We currently have nuclear propulsion systems.

我们目前拥有核推进系统。

At the same time, engineers are seeking to find the cause of helium leaks in the spacecraft's propulsion system.

与此同时，工程师们正在寻找航天器推进系统氦气泄漏原因。

The thermal protection system, all the propulsion systems that were necessary, really it was an incredible marvel of human engineering.

热防护系统，所有推进系统都很有必要，真是人类工程学一个奇迹。

Electric propulsion systems are so simple that really there's just nothing that you really need to be that concerned about.

电力推进系统非常简单，没有什么真需要担心地方。

All the way from Earth Using a gentle solar, powered electric propulsion system.

全程从地球出发 使用温和太阳能驱动电推进系统。

They were testing their propulsion system in what they called a propulsion open-air test.

他们在所谓推进开放空气测试中测试了他们推进系统。

This is a critical element for creating propulsion systems or engines for SpaceX rockets.

这是为太空探索技术公司（SpaceX）火箭制造推进系统或发动机关键要素。

How to construct things, propulsion systems, and they believe that these things are donations.

如何建造事物、推进系统，他们相信这些都是捐赠品。

Star Chip features a light-powered propulsion system that reaches speeds up to 37,000 miles per second.

Star Chip 采用光动力推进系统，速度可达每秒 37,000 英里。

Another creative propulsion system is the EmDrive, also known as the Impossible Drive.

另一个创造性推进系统是 EmDrive，也被称为 Impossible Drive。

Perhaps super magnets could be created to ward off radiation advanced propulsion systems could reduce the time it takes to get to Mars.

或许强力磁铁可以解决问题，或推进系统改良可以缩短到火星航程。

By 2022, 77% of the buses on China's roads had some kind of electric propulsion system.

到2022年，中国道路77%公共汽车都配备了某种电动推进系统。